In Frankel et al. (1999), we incorrectly described part of the shear-wave velocity (Vs) profile used to calculate the predicted spectra at site KD1 near the Kingdome in Seattle (figure 7 of Frankel et al., 1999). The shear-wave velocity profile we used was partially determined from a seismic refraction/reflection survey reported by Williams et al. (1999) at sites KD1 and KD2. The velocity of the stiff deposits underlying the fill was taken from a borehole measurement at...